Debt and Financing Activities - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Sep. 30, 2024	Sep. 10, 2024	Mar. 31, 2024	Jun. 15, 2023
Debt Instrument [Line Items]
Total debt	$ 5,744		$ 5,629
Less: Current portion	53		50
Total long-term debt	$ 5,691		5,579
5.25% Notes due February 15, 2026
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)		5.25%
Loans payable | 0.90% Notes due December 3, 2025
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	0.90%
Total debt	$ 500		500
Loans payable | 5.25% Notes due February 15, 2026
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	5.25%
Total debt	$ 499		499
Loans payable | 1.30% Notes due August 15, 2026
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	1.30%
Total debt	$ 0		499
Loans payable | 7.65% Debentures due March 1, 2027
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	7.65%
Total debt	$ 150		150
Loans payable | 3.95% Notes due February 16, 2028
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	3.95%
Total debt	$ 343		343
Loans payable | 4.90% Notes due July 15, 2028
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	4.90%			4.90%
Total debt	$ 399		399
Loans payable | 4.75% Notes due May 30, 2029
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	4.75%
Total debt	$ 196		196
Loans payable | 4.25% Notes due September 15, 2029
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	4.25%	4.25%
Total debt	$ 500		0
Loans payable | 5.10% Notes due July 15, 2033
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	5.10%			5.10%
Total debt	$ 597		596
Loans payable | 6.00% Notes due March 1, 2041
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	6.00%
Total debt	$ 218		218
Loans payable | 4.88% Notes due March 15, 2044
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	4.88%
Total debt	$ 255		255
Loans payable | 1.50% Euro Notes due November 17, 2025
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	1.50%
Total debt	$ 667		646
Loans payable | 1.63% Euro Notes due October 30, 2026
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	1.63%
Total debt	$ 557		540
Loans payable | 3.13% Sterling Notes due February 17, 2029
Debt Instrument [Line Items]
Interest rate on debt instrument (percent)	3.13%
Total debt	$ 602		568
Lease and other obligations
Debt Instrument [Line Items]
Total debt	$ 261		$ 220